package com.example.springbootmybatis0912.service.impl;

import com.example.springbootmybatis0912.mapper.CardMapper;
import com.example.springbootmybatis0912.service.CardService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class CardServiceImpl implements CardService {

    @Autowired
    private CardMapper mapper;


    @Override
    public String selCard(Integer id) {
        mapper.selectByPrimaryKey(Long.valueOf(id));
        return null;
    }
}
